Home / 908,344,398.75-1,253,515,819.56-490,656,868.57

Finding the Fourth Proportional to 908,344,398.75, 1,253,515,819.56 and 490,656,868.57

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Solution

The fourth proportional to 908,344,398.75, 1,253,515,819.56 and 490,656,868.57 is: 677,106,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,398.75 : 1,253,515,819.56 = 490,656,868.57 : x
  2. Step 2: Convert to fraction form
    908,344,398.75/1,253,515,819.56 = 490,656,868.57/x
  3. Step 3: Cross multiply
    908,344,398.75x = 1,253,515,819.56 × 490,656,868.57
  4. Step 4: Simplify right side
    908,344,398.75x = 615,046,146,728,266,752
  5. Step 5: Solve for x
    x = 615,046,146,728,266,752/908,344,398.75
  6. Step 6: Final answer
    x = 677,106,775.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.